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On stagnation pressure increases in calorically perfect, ideal gases
International Journal of Heat and Fluid Flow, 2016Abstract When stagnation pressure rises in a natural or numerically simulated flow it is frequently a cause for concern, as one usually expects viscosity and turbulence to cause stagnation pressure to decrease. In fact, if stagnation pressure increases, one may suspect measurement or numerical errors. However, this need not be the case, as the laws
P R Spalart
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Measurements of the stagnation pressure in the center of a cavitating jet [PDF]
Experiments in Fluids, 2011 The stagnation pressure at a certain distance from the nozzle is important for the erosion/ cutting capacity of a submerged jet in dredging. The decay of the stagnation pressure with jet distance is well known in the case of non-cavitating jets. It is also known that cavitation causes the rate of decay to decrease.
Nobel, A.J. (author) +1 more
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An empirical model for stagnation pressure gain in rotating detonation combustors
Proceedings of the Combustion Institute, 2021Abstract This work investigates the stagnation pressure gain in rotating detonation combustors (RDC) and its dependency on the geometry and mass flux of the combustor. Using a Kiel probe to directly measure stagnation pressure in the high-enthalpy exhaust stream, results are presented for a systematic variation of these parameters.
Panagiotis Stathopoulos +2 more
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Effect of welding variables on GTAW arc stagnation pressure
Welding in the World, Le Soudage Dans Le Monde, 2020This paper presents the influence of welding current, electrode-workpiece distance, electrode composition, electrode diameter, electrode tip angle, shielding gas composition, and pulsed current frequency over the arc stagnation pressure of gas tungsten arc welding (GTAW).
Tiago Vieira da Cunha +1 more
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Rise of Total Pressure Near the Stagnation Point on a Sphere
AIAA Journal, 2002James C Williams
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Stagnation Pressure Changes in Unsteady Flow
Aeronautical Quarterly, 1971SummaryThe changes in stagnation pressure produced by movement of rows, arrays and sheets of vortices are derived. By applying Preston’s result for a single row of moving vortices to continuous vortex sheets, the time mean stagnation pressure downstream of a row of blades with fluctuating circulation is derived.
J. H. Horlock, H. Daneshyar
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Pressure induced by a stagnating turbulent field
The Physics of Fluids, 1976The frequency spectrum of a pressure field resulting from turbulence stagnating on a body is shown to be related to the fluctuating dynamic head through a Fourier-like transform along the mean stagnation streamline.
Goodman, L., Massey, A.
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Isentropic air flows at high stagnation pressures
Fluid Dynamics, 1974Calculations of the gasdynamic parameters of air using different equations of state for a real gas in one-dimensional formulation were carried out in [1-3]. The results from these papers are of a limited nature, as the equation of state of a real gas, which occurs in the system of starting equations, is valid for a quite narrow range of total pressures
L. M. Davydov, V. M. Zhiravov
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Stagnation Pressure Transient Control in a Supersonic Blowdown Wind Tunnel Test Facility
Materials Today: Proceedings, 2016 Research in the area of wind tunnel flow parameters control has been intensified in recent years, in an attempt to improve quality and efficiency of the wind tunnel operation.
Mirko Milosavljevic +2 more
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A stagnation pressure probe for droplet-laden air flow
Journal of Propulsion and Power, 1985It is often of interest in a droplet-laden gas flow to obtain the stagnation pressure of both the gas phase and the mixture. A flow-decelerating probe (TPF), with separate, purged ports for the gas phase and the mixture and with a bleed for accumulating liquid at the closed end, has been developed.
S. MURTHY, M. LEONARDO, C. EHRESMAN
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