Blar i forfatter "Muhammed, Manaf"

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    • Ice Accretion on Fixed-Wing Unmanned Aerial Vehicle—A Review Study 

      Muhammed, Manaf; Virk, Muhammad Shakeel (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-28)
      Ice accretion on commercial aircraft operating at high Reynolds numbers has been extensively studied in the literature, but a direct transformation of these results to an Unmanned Aerial Vehicle (UAV) operating at low Reynolds numbers is not straightforward. Changes in Reynolds number have a significant impact on the ice accretion physics. Previously, only a few researchers worked in this area, ...

    • Ice Accretion on Rotary-Wing Unmanned Aerial Vehicles—A Review Study 

      Muhammed, Manaf; Virk, Muhammad Shakeel (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-08)
      Ice accretion on rotary-wing unmanned aerial vehicles (RWUAVs) needs to be studied separately from the fixed-wing UAVs because of the additional flow complexities induced by the propeller rotation. The aerodynamics of rotatory wings are extremely challenging compared to the fixed-wing configuration. Atmospheric icing can be considered a hazard that can plague the operation of UAVs, especially in the ...

    • Investigating Ice Nucleation and Heat Transfer Dynamics in Supercooled Liquid Water Using Thermography 

      Khawaja, Hassan Abbas; Keshavarzi, Samaneh; Muhammed, Manaf; Yousuf, Adeel; Virk, Muhammad Shakeel; Harvey, Derek; Momen, Gelareh (Conference object; Konferansebidrag, 2023-12)
      This study delves into the intricate interplay of thermography, ice nucleation, and heat transfer during the phase change from supercooled liquid water to crystallized ice. The phenomena of ice nucleation and its subsequent growth have paramount importance in various fields, including cold climate engineering, atmospheric science, cryopreservation, and refrigeration systems. Our research aims to ...

    • Investigating RANS Turbulence Models for Predicting Airflow Dispersion in Enclosed Environments: Numerical Simulation and Experimental Validation 

      Owolabi, Jibola Obafemi; Dhar, Sushmit; Muhammed, Manaf; Khawaja, Hassan Abbas; Aganovic, Amar; Virk, Muhammad Shakeel (Conference object; Konferansebidrag, 2023-12)
      The dispersion of respiratory aerosol particles in enclosed environments poses a significant challenge to understanding the transmission of airborne infectious diseases, mainly due to the influence of turbulence on the propagation of aerosol particles. Turbulence, with its complex and chaotic nature, is a prevailing phenomenon in a fluid flow. Four widely used Reynolds-Averaged Navier-Stokes (RANS) ...

    • Steady and Time Dependent Study of Laminar Separation Bubble (LSB) behavior along UAV Airfoil RG-15 

      Muhammed, Manaf; Virk, Muhammad Shakeel (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-29)
      The flow around the Unmanned Arial Vehicle (UAV) operating at a low Reynolds number regime of the O() is predominantly laminar and it leads to the formation of Laminar Separation Bubble (LSB). The pressure, shear stress, and heat flux distribution are considerably affected by LSB, which affects lift, drag, and pitching moment values. Most existing RANS (Reynolds-Averaged Navier-Stokes) turbulence ...