Exploració per autor "Sarwar, Wasim"
Ara es mostren els items 1-8 de 8
-
Active flow control methods for aerodynamic applications
Sarwar, Wasim (Universitat Politècnica de Catalunya, 2020-07-17)
Tesi
Accés obertThe cylinder in cross flow has been the subject of many numerical and experimental studies since it provides a deep insight of the physical phenomena occurring in a wide range of flow regimes. Despite a number of investigations ... -
Aerodynamic performances and wake topology past a square cylinder in the interface of two different-velocity streams
El Mansy, Reda; Bergadà Granyó, Josep Maria; Sarwar, Wasim; Mellibovsky Elstein, Fernando (American Institute of Physics (AIP), 2022-06-02)
Article
Accés obertWe analyze the incompressible flow past a square cylinder immersed in the wake of an upstream splitter plate, which separates two streams of different velocities, UT (top) and UB (bottom). The Reynolds number associated ... -
Characteristic spanwise length scales of streamwise vortical structures in the wake of a circular cylinder at Re = 1500 measured via global and local approaches
Sarwar, Wasim; El Mansy, Reda; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando (Elsevier, 2023-01-30)
Article
Accés restringit per política de l'editorialWake characteristics of the flow past a circular cylinder are analysed in detail at Reynolds number Re = 1500 via direct numerical simulation. A periodic spanwise domain of length 1.5pD has been found to yield correct ... -
Characterization of three-dimensional vortical structures in the wake past a circular cylinder in the transitional regime
Sarwar, Wasim; Mellibovsky Elstein, Fernando (2020)
Article
Accés obertThe flow past a circular cylinder in the transitional regime at Re = 2000 has been thoroughly investigated via well resolved direct numerical simulation with a spectral element code. Spanwise periodic boundary conditions ... -
Onset of temporal dynamics within a low reynolds-number laminar fluidic oscillator
Sarwar, Wasim; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando (2021-02-18)
Article
Accés obertWe investigate the onset of temporal dynamics of a fluidic oscillator (FO) in the laminar regime at very low Reynolds number ( where and are the velocity and channel height at inlet, and is the kinematic viscosity of the ... -
Square cylinder in the interface of two different velocity streams
Elmansy, Reda Mohamed Yousyf Abdallah; Sarwar, Wasim; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando (2022-10-24)
Article
Accés obertWe investigate the incompressible flow past a square cylinder immersed in the wake of an upstream nearby splitter plate separating two streams of different velocity. The bottom stream Reynolds number, based on the square ... -
Three dimensional structures of flow through a square cylinder with an upstream splitter plate and for several velo city ratios
El Mansy, Reda; Sarwar, Wasim; Rodríguez Pérez, Ivette María; Bergadà Granyó, Josep Maria (2018)
Text en actes de congrés
Accés restringit per política de l'editorialIn the present paper, three-dimensional Fluid structures and wake characteristics are evaluated for a square cylinder with an upstream splitter plate. The splitter plate divides the incoming flow in two streams, the ... -
Transition to periodic behaviour of flow past a circular cylinder under the action of fluidic actuation in the transitional regime
Sarwar, Wasim; Mellibovsky Elstein, Fernando; Alam, Mahbub; Zafar, Farhan (2021-08)
Article
Accés obertThis study focuses on the numerical investigation of the underlying mechanism of transition from chaotic to periodic dynamics of circular cylinder wake under the action of time-dependent fluidic actuation at the Reynolds ...