Radial Propagation of Turbulence in Pulsatile Pipe Flow
نویسندگان
چکیده
منابع مشابه
Turbulence Transition in Pipe Flow
Pipe flow is a prominent example among the shear flows that undergo transition to turbulence without mediation by a linear instability of the laminar profile. Experiments on pipe flow, as well as plane Couette and plane Poiseuille flow, show that triggering turbulence depends sensitively on initial conditions, that between the laminar and the turbulent states there exists no intermediate state ...
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Direct numerical simulation of transitional pipe flow is carried out in a long computational domain in order to characterize the dynamics within the saddle region of phase space that separates laminar flow from turbulent intermittency. For Reynolds numbers ranging from Re=1800 to 2800, a shoot and bisection method is used to compute critical trajectories. The chaotic saddle or edge state approa...
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This study numerically investigates turbulent pipe flow driven by a pulsating pressure gradient. While studies of laminar and turbulent pulsatile pipe flow with a single mode of oscillating pressure gradient have been carried out extensively, there is scarce literature on pulsating pressure gradients with multiple temporal Fourier modes. In many real-life engineering applications, for example, ...
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ژورنال
عنوان ژورنال: JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties
سال: 1989
ISSN: 0914-8817
DOI: 10.1299/jsmeb1988.32.2_173