Showing 1 - 20 results of 27 for search '((ball OR bill) OR (bills OR (files OR five))) ((drago OR drugon) OR drag)', query time: 0.21s Refine Results
  1. 1

    Computation fluid dynamics on drag reduction II by Zang, Bin

    Published 2011
    “…In this project, a number of Reynolds-Average Navier-Stokes (RANS) models are verified with benchmark values of Direct Numerical Solutions (DNS) provided by the past research to identify appropriate RANS models which allow the simulation of dimpled flow with specific Reynolds number and initial conditions in a 3D channel. Five RANS turbulence models: Spalart-Allmaras (Vorticity-based production); Spalart-Allmaras (Strain / Vorticity-based production); k-ε Standard (Enhanced Wall Treatment); k-ε Realizable (Enhanced Wall Treatment) and k-ω Standard (Shear Flow Correction), are chosen after comparing with DNS data published by Moser et al (1999). [20] Subsequently, the single and multiple dimpled channel flows are modeled and simulated by the five RANS models chosen in the verification stage with periodic boundary condition, a Reynolds number of 20000, and a three-dimensional channel of L = 1.5 m, B = 0.454 m and H = 1 m. …”
    Get full text
    Final Year Project (FYP)
  2. 2

    Drag of generic round-shaped bodies in supersonic flow by Song, Dennis Shao Hui.

    Published 2011
    “…The objective of this study is to achieve an enhanced understanding of drag performance in supersonic flow. The various drag components were analysed over a supersonic regime between the Mach numbers 1.5 to 4 at sea level while the effects of geometry variations were investigated. …”
    Get full text
    Final Year Project (FYP)
  3. 3

    Eccentricity effects of microhole arrays on drag reduction efficiency of microchannels with a hydrophobic wall by Kashaninejad, Navid, Nguyen, Nam-Trung, Chan, Weng Kong

    Published 2013
    “…The results indicate that the impact of microhole eccentricity on drag reduction performance correlates well with the contact angle hysteresis rather than with the static contact angle. …”
    Get full text
    Get full text
    Journal Article
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10

    Hydrodynamic stability of flow over Kramer-type compliant surface by Tan, Shi Nguan.

    Published 2009
    “…The development began with five conceptual designs and the matrix evaluation table was then used to select the final design. …”
    Get full text
    Final Year Project (FYP)
  11. 11

    Active control of wakes and vortex-induced vibration of a circular cylinder at Re = 100 by Wang, Chenglei

    Published 2016
    “…As zero net-mass-flux jets, SJs have been widely applied in flow separation control and drag reduction for bluff bodies. However, their implementation for VIV control is rare and still remains not fully understood. …”
    Get full text
    Thesis
  12. 12

    Injection effects on settling velocity by Le, Duc Anh

    Published 2015
    “…Different injection flow rates such as 2.5×10-5 m3/s, 5×10-5 m3/s, 7.5×10-5 m3/s, 1×10-4 m3/s were also used to calculate settling velocity and drag coefficient in injection condition. …”
    Get full text
    Final Year Project (FYP)
  13. 13

    Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator by Muhammad Amirul Hakimin, Zainondin, Izuan Amin, Ishak, Mohd Fuad, Yasak, Arafat, Mohammad, Nor Atiqah, Zolpakar, Nurshafinaz, Mohd Maruai

    Published 2025
    “…From the result, 9 number of VG and 5 mm fillet radius obtained the lowest value of coefficient of drag, Cd compared with the others which is Cd = 0.3747 for 27.78 m/s and Cd = 0.5031 for 33.33 m/s, respectively. …”
    Get full text
    Article
  14. 14

    Investigation of flow over rough surfaces by Gan, Kee Poh

    Published 2018
    “…Reduction of drag in fluid flow has been one of the main objectives of engineers in the field of fluid mechanics. …”
    Get full text
    Final Year Project (FYP)
  15. 15

    Characteristics of bubble rise in a liquid by Tan, Si Ying

    Published 2022
    “…Simultaneously, the trajectory and the bubble shape, in terms of aspect ratio, are observed to be highly dependent on both bubble size and fluid viscosity, which affects the components of a drag force. Slight deviations from the standard drag coefficient curve for a solid sphere could be due to the differences in aspect ratio which affect the bubble frontal area given that the bubble volume remains constant.…”
    Get full text
    Final Year Project (FYP)
  16. 16

    Seepage effects on settling velocity by Goh, Alvin Hanchang.

    Published 2009
    “…Uniform plastic spherical particles of varying diameters (0.630cm, 0.790cm, 0.950cm and 1.285cm) and densities under different seepage inflow rates (0 m3/s, 1X10-4 m3/s, 2X10-4 m3/s and 5X10-4 m3/s) are used. The drag coefficient is the most important property in the mechanics of particle motion and fluid dynamics because most particles in real life are employed either to overcome or to utilize the drag caused by the fluid. …”
    Get full text
    Final Year Project (FYP)
  17. 17
  18. 18

    Unsteady flow-induced vibration of the slider in a commercial hard disk drive by Toh, Jeffrey See Ren.

    Published 2013
    “…Based on the corresponding drag force which was calculated by having the difference of transient pressure between two nodes, it was observed that the drag force had a direct aerodynamic excitation of the FIV on the HGA plate. …”
    Get full text
    Final Year Project (FYP)
  19. 19

    An experimental and simulation study of chip transportation behaviour in gundrilling by Tnay, Guan Leong

    Published 2017
    “…The experiments were conducted in vertical square tube filled with the water-glycerine solutions which have properties similar to the coolant properties with concentration of 85 % oil to 5 % oil. From the experiments, terminal velocities of typical gun drill chips at different range of particle Reynolds number were determined to construct the unique drag curve. …”
    Get full text
    Thesis
  20. 20

    Numerical study of trapped vortex combustors characteristics in small ramjets by Chen, Song

    Published 2016
    “…In this thesis, a TVC designed for a small ramjet operating at Mach 4.0 is numerically investigated by using ANSYS FLUENT v14.5 and a large eddy simulation (LES) code from Stanford. …”
    Get full text
    Thesis