Results 61 to 70 of about 140,231 (211)

Solid-Fuel Regression Rate for Standard-Flow Hybrid Rocket Motors

open access: yesJournal of Thermal Science and Technology, 2012
Marxman's diffusion-limited analysis of hybrid rocket combustion has been often used to investigate various combustion problems in hybrid rocket motors.
Takakazu MORITA   +3 more
doaj   +1 more source

Experimental study of boundary layer transition with elevated freestream turbulence on a heated flat plate [PDF]

open access: yes
A detailed investigation to document momentum and thermal development of boundary layers undergoing natural transition on a heated flat plate was performed.
Reshotko, Eli, Sohn, Ki-Hyeon
core   +1 more source

Prediction of compliant wall drag reduction, part 2 [PDF]

open access: yes
A numerical model of turbulent boundary layer flows over compliant walls was investigated. The model is based on Burton's observation that outer flow structures in turbulent boundary layers produce large scale pressure fluctuations near the wall.
Orszag, S. A.
core   +1 more source

Large Eddy Simulation of Canonical Atmospheric Boundary Layer Flows With the Spectral Element Method in Nek5000

open access: yesJournal of Advances in Modeling Earth Systems
Simulation of turbulence in the atmospheric boundary layer (ABL) is challenging due to the wide range of turbulent scales in the flow. To leverage the currently available computational power for high‐resolution simulation of atmospheric turbulence, fluid
L. Huusko   +5 more
doaj   +1 more source

Application of the Turbulent Potential Model to Unsteady Flows and Three-Dimensional Boundary Layers

open access: yesInternational Journal of Rotating Machinery, 2003
The turbulent potential model is a Reynolds-averaged (RANS) turbulence model that is theoretically capable of capturing nonequilibrium turbulent flows at a computational cost and complexity comparable to two-equation models.
J. Blair Perot, Sasanka Are, Xing Zhang
doaj   +1 more source

Calculation of laminar and turbulent boundary layers for two-dimensional time-dependent flows [PDF]

open access: yes
A general method for computing laminar and turbulent boundary layers for two-dimensional time-dependent flows is presented. The method uses an eddy-viscosity formulation to model the Reynolds shear-stress term and a very efficient numerical method to ...
Cebeci, T.
core   +1 more source

Velocity and thermal boundary layer equations for turbulent Rayleigh-Bénard convection

open access: yesPhysical Review Research, 2019
In turbulent Rayleigh-Bénard convection, the boundary layers are nonsteady with fluctuations, the time-averaged large-scale circulating velocity vanishes far away from the top and bottom plates, and the motion arises from buoyancy.
Emily S. C. Ching   +3 more
doaj   +1 more source

Turbulent boundary layers with secondary flow [PDF]

open access: yes
An experimental analysis of the boundary layer on a plane wall, along which the flow occurs, whose potential flow lines are curved in plane parallel to the wall is discussed. According to the equation frequently applied to boundary layers in a plane flow,
Grushwitz, E.
core   +1 more source

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