5 papers · 1 filter
On the Aerodynamics of Multistage Co-Axial Vertical-Axis Wind Turbines
Muhammad Saif Ullah Khalid, David Wood, Arman Hemmati
This study explored the aerodynamics of a new multi-stage co-axial vertical-axis wind turbine based on bio-inspiration from natural swimming habit of fish. The turbine was formed f…
How does altering synchronization of pitching parallel foils change their wake dynamics?
Ahmet Gungor, Muhammad Saif Ullah Khalid, Arman Hemmati
This study was inspired from the swimming habits of red nose tetra fish that prefer side-by-side configurations and exhibit changes to their synchronization mid-swimming. Using num…
Larger wavelengths suit the hydrodynamics of carangiform swimmers
Muhammad Saif Ullah Khalid, Junshi Wang, Imran Akhtar +3
The wavelength of undulatory kinematics of fish is an important parameter to determine their hydrodynamic performance. This study focuses on numerical examination of this feature b…
Flow Transitions and Mapping for Undulating Swimmers
Muhammad Saif Ullah Khalid, Junshi Wang, Haibo Dong +1
Natural swimmers usually perform undulations to propel themselves and perform a range of maneuvers. These include various biological species ranging from micro-sized organisms to l…
Quantification of Flow Noise Produced by an Oscillating Foil
Muhammad Saif Ullah Khalid, Xiaoping Jiang, Imran Akhtar +1
Getting inspired from swimming natural species, a lot of research is being carried out in the field of unmanned underwater vehicles. During the last two decades, more emphasis on t…