PhD & MPhil Titles

If you are interested in coming to UTM as a Ph.D / M/Phil students, and possibly working with me, here are some topics that I’m currently working with;

  1. Bio-inspired airfoil shapes for reduction Leading/Trailing edges noise.
  2. Energy Harvesting for powering IoT Devices using flow induced vibration.
  3. Aerodynamic Performance And Safety For A Proposed Malaysia High Speed
    Train Traveling Under Crosswinds
  4. Aerodynamics loading and Noise emissions from a high speed train
  5. Aeroacoustics refinement of a passenger car DrivAer for NVH improvement

Contact Me at

Sound from high-Reynolds number flow over bluff bodies

– This paper aims to investigate the aerodynamic sound generated from flow over bluff bodies at a high Reynolds number. By taking circular and square cylinders as two representative geometries for the cross-section of bluff bodies, this study aims to clarify the difference in flow formation and sound generation between the two types of bluff bodies. Furthermore, the possibility for a downstream flat plate to be used as sound cancellation passive mechanism is also discussed in this study.

– Sound source from the near field is numerically solved by using the Unsteady Reynolds-Averaged Navier Stokes equations. While for the sound at far-field, the compact sound theory of Curle’s analogy is used.

– Magnitude of the generated sound is dominant by the aerodynamic forcer fluctuations, i.e. lift and drag, where the lift fluctuation gives the strongest influence on the sound generation. The square cylinder emits 4.7 dB higher than the sound emitted from flow over the circular cylinder. This relates to the longer vortex formation length for the case of square cylinder that provides space for more vortex to dissipate. It is suggested that downstream flat plate is possible to be applied for a sound cancellation mechanism for the case of circular cylinder, but it would be more challenging for the case of square cylinder.

Practical implications
– This study include implications for the development of noise reduction study especially in high-speed vehicles such as the aircrafts and high-speed trains.

– This study identified that there is possible method for sound cancellation in flow over bluff body cases by using passive control method, even in flow at high Reynolds number.

email me (researchsukri[at] if you want the copy of the paper.

Sustainable Malaysia High Speed Train System

Today, as an initiative to bid the Malaysia High Speed Train Project, Japanese government and Japanese trade associations have organised a free seminar on high speed Rail. The seminar is also to commemorate the 50th anniversary of Shinkansen.

The successful of Shinkansen is amazing.  It’s no doubt that Shinkansen has increased the GDP growth rate of Japan (0.3%), contributed to the regional development and the most preferable mode of transport for travel distance up to 1000Km. For year ended March 31, 2014, JR EAST (one of the Shinkansen operator), has made annual operating revenue of $27billion and without any subsidies from the government.

Can Malaysia High Speed train be as successful as the Shinkansen. Do Malaysia need to buy the Japanese technology so that the successfulness of the Billion dolar project can be guaranteed.

If we look one of the main factor for the successful of the Shinkansen in Japan is on the ownership of the technology.  High speed train technology is not only involved interdisciplinary technologies (rolling stock, safety, track technology, signal system, electricity, environmental impact and etc ) but also require the advanced technology.  In average, in every 10years, one new series of Shinkansen has evolved. This fast growing and sustainable development of the Shinkansen technology is supported strongly by Japanese research institutes. One of them is Railway Technical Research Institute (RTRI).

What elements that Malaysia will look in choosing the right technology is still not been finalised. If Malaysia just need the high speed railway system, then  the construction of the Malaysia high train will be easy, quick and will be very much similar to the system in the country that the technology is originally being bought from.

But, Malaysia also, is believed, to look into the sustainable elements. Technology transfer is important for this kind of billion dollar project.  Malaysia like to have their own people involve in the research and development of its high speed train project. This should come with specific targets, and one of the target should be able to export Malaysia own High Speed train technology in the next few years. To achieve this target, a research centre specifically for High Speed Train Technology, similar to RTRI in Japan,  should be setup.







Flow modelling and noise generation of interacting prisms.

Noise generation is a significant issue for High-Speed Trains (HSTs), and as speeds increase aerodynamically generated noise becomes the dominant noise source. In this article, the effect of nose shape, carriage separation and yaw angle on the aerodynamics and noise generation are analysed using two prisms, representing a HST model. The aerodynamics are modelled using Computation Fluid Dynamics (CFD), and the flow velocity and turbulence intensity in various positions in the wake are compared with experimental hotwire data measured in the Anechoic Wind Tunnel (AWT) at The University of Adelaide, with good agreement. Finally, acoustic beamforming images of the noise generated by the interacting prisms measured in the AWT are presented. The acoustic results show that a blunt nose tends to increase noise at lower frequencies significantly, while increasing prism separation tends to increase noise over most frequencies, but most significantly at midfrequencies, and increasing yaw angle increases noise across all frequencies. Beamforming results show that at lower frequencies, this noise tends to be generated at the leading and trailing edges, while at higher frequencies the noise tends to be generated in the carriage gap.

AIAA Aviation,16-20 June 2014, Atlanta, GA, 20th AIAA/CEAS Aeroacoustics Conference.

Paper: AIAA 2014-3287

The proposed High Speed Rail (HSR) link between Kuala Lumpur and Singapore is making good progress. – Channel News Asia

SINGAPORE: The proposed High Speed Rail (HSR) link between Kuala Lumpur and Singapore is making good progress.

This was revealed in a joint statement after the 10th Malaysia-Singapore Joint Ministerial Committee Meeting for Iskandar Malaysia (JMCIM).

The meeting was held in Singapore, and was co-chaired by National Development Minister Khaw Boon Wan and Malaysia’s Minister in the Prime Minister’s Department, Abdul Wahid Omar.

Also present were Transport Minister Lui Tuck Yew and Johor’s chief minister Mohamed Khaled Nordin.

The JMCIM said discussions over how to improve connectivity and linkages between the two cities have begun.

The Rapid Transit System between Singapore and Johor Bahru is also on track.

Both countries have agreed to work towards a preferred and agreed option by the end of this year.

For now, people travelling between both countries can benefit from 20 cross-border bus services, up from the previous 16.

Both sides are currently reviewing new landing points to enhance the bus network.

More people have also applied for faster immigration clearance from Singapore into Malaysia last year, highlighting both countries’ progress in facilitating cross-border movement.

Some 127,000 new applications for the Malaysian Automated Clearance System were made last year, taking the total number of applications since 2009 to nearly 372,000.

The JMCIM also highlighted progress in areas like industrial cooperation, housing, tourism and the environment.

It noted that cooperation in the areas of Advanced Materials Engineering (AME), Electronics, Creative Services and Food was gaining momentum.

In the area of AME, Singapore and Malaysia have agreed to build up a regional ecosystem of suppliers across both countries to support the fast-growing oil and gas industry in Asia.

In housing, construction has begun on Afiniti Medini, an urban wellness project in Iskandar Malaysia.

The development is on track to be completed by the end of 2015.

The first phase of a separate development in the area, Avira Wellness Resort, will be launched in the first half of this year.

Singapore and Malaysia have also conducted five ecotourism-related workshops.

Representatives from both countries jointly inspected the three Ramsar Johor sites, which are wetlands that are being primed for eco-tourism.

The JMCIM said both countries are exploring collaboration in the MICE (Meeting, Incentive, Conference, Exhibitions) sector for these sites.

It also noted the good collaboration in the areas of river clean-up and environmental management.

It said most of the identified action plans for river cleaning in Iskandar Malaysia have been implemented and are well on track.

– CNA/fa

KL-S’pore high speed rail link will take off albeit some time later, says Hishammuddin – The Sun Daily

SINGAPORE (Feb 13, 2014): Acting Transport Minister Datuk Seri Hishammuddin Tun Hussien says the High Speed Rail Link (HSR) between Kuala Lumpur-Singapore will take off although it will take some time to be realised.

He said the massive project was an economic initiative that not involved the Transport Ministry but also the Economic Planning Unit in the Prime Minister’s Department.

“That’s what I say…things that we thought impossible, and only a few years back, the two prime ministers of Malaysia and Singapore have reached such a good level of working arrangement and relationship to come up with the iconic project to bind us, that I think will go ahead,” he said.

Earlier, Hishammuddin, who is also Defence Minister, attended a ceremony in honour of fallen World War 11 hero, Lt Adnan Saidi and his team from the Malay Regiment, who were killed in a battle defending Singapore from the invading Japanese 71 years ago.

Also present was Malaysia’s High Commissioner to Singapore Datuk Husni Zai Yaacob.

At the the Leaders’ Retreat here in February 2013, Prime Minister Datuk Seri Najib Abdul Razak and Singapore Prime Minister Lee Hsien Loong announced the 330km project at an estimated cost of US$12 billion.

The project, expected to be completed in 2020, will shorten travel time to just 90 minutes between the two cities.

It was an idea initiated in the 1990s but never took off.

Hishammuddin said the completion of the HSR would bring enormous economic benefits to both neighbouring countries.

“I am just looking around what’s happening in the world, (if) you see the train that comes from London to Paris..the benefits that come from it..and imagine the train coming from Singapore to KL…what are the benefits, but it is still some time away before we can get there,” he said, adding that it would take place.

The Malaysia-Singapore Joint Ministerial Committee for Iskandar Malaysia has been tasked to look into the details and the modalities of the HSR to improve connectivity and linkages between Malaysia and Singapore.

A HSR Work Group was then formed and it has made good progress since its formation in December 2013.

Discussions have started with a working session held last month.

The work group has identified matters for joint deliberations. – Bernama

Will the RM160b for the Malaysia 1st high speed train project goes mainly to buy the foreign technology?

The plan to build a high speed train system connecting Singapore and Kuala Lumpur is seem to be finalised and realized soon. Malaysia is said willing to spent RM160 billion for this project ( as it’ll enhance the Malaysia economic activities.

Many componies, locally and oversies, have shown an interest on this project, as reported on “MMC Corp Bhd, which may team up with Gamuda Bhd and Chinese and European system integrators and YTL Corp Bhd with Spanish bullet train maker Talgo or CAF. Other firms are UEM Group Bhd, which is working with Ara Group to form a consortium with European companies that may also include Talgo, while Global Rail is said to be talking to Canada’s Bombardier Inc and Chinese firm China Railway Group.”

Previously, I reported my concern for the local experts to take part actively on this project and to date my concern is still the same.

Recently, Japan’s prime ministry has STRONGLY requested for Malaysia to choose Shikansen technology ( Not to forget that Chinese and Korean have already shown an interest earlier  (

Is Malaysia really need a foreign technology to build it own High Speed Train system??


Malaysia set to spend US$50b to develop rail network (

MALAYSIA: Malaysia plans to spend a staggering US$50 billion to develop its rail network over the next seven years, including a high-speed rail linking Kuala Lumpur and Singapore set for 2020, and the urban mass rapid transit system that is rolling out in 2017.

Compared to developed countries where rail transport makes up a third of public transportation, Malaysia’s share is less than 4 per cent.

People here rely heavily on roads because existing train services are slow and train journeys are time consuming. However with spiralling land and fuel costs, limited space and traffic congestion, rail transportation is seeing a revival.

Prime Minister Najib Razak recently announced big plans for the country at a global rail conference. Mr Najib said: “Once considered a dying industry, railroads have made a strong comeback and are poised to become busier passageways in the years ahead.”

According to the land public transport commission (SPAD), the government has allocated almost US$50 billion for rail-related projects – three times more than what it spent in the last two decades.

The MY Rapid Transit (MRT), when fully operational, will cover a distance of 150 kilometres and provide half of the public transport services in the Klang Valley.

Commuter train services will also be expanded with the electrified double track railway. Spanning 1,000 kilometres from Padang Besar in the north, to Johor Bahru in the south, the project is expected to cost the government over US$13 billion.

Despite the massive cost overruns and project delays, KTM, as well as the government, want the electrified double track rail to be ready two years ahead of the scheduled completion of the high-speed rail linking Kuala Lumpur and Singapore by year 2018.

Mr Syed Hamid Albar, SPAD chairman, said: “It’s not a competition… I think we are looking at people, the sector we are looking at generally is people who may like to go by flight for long distances (but not for short distances). But not everybody likes to go on fast trains, because fast trains there will be different cost elements. So I think both can be complementary.”

Still there has been much buzz about the high-speed rail link. It will have a 90-minute express service every hour, as well as three transit services lasting less than two hours.

Tickets will be priced below that of budget airlines.

Malaysia’s technical team will engage its Singapore counterpart next month. Negotiations may take up to 12 months before the tender process begins. Construction is expected to begin by 2015, before the scheduled take off in 2020.