20th Thermophysics Conference 1985
DOI: 10.2514/6.1985-971
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The effects of surface discontinuities on convective hear transfer in hypersonic flow

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Cited by 14 publications
(10 citation statements)
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“…1). These interactions are strongly three-dimensional and present similar features to more commonly investigated interactions such as those induced by blunt fins (Jones 1964;Neumann and Hayes 1981), cylindrical obstacles in hypersonic flow (Hung and Patel 1984;Nestler 1985;Tang and Yu 1992;Avallone et al 2015) and other specific protuberances (Neumann and Freeman 2012;Kumar andReddy 2013, 2014), which generally involve the formation of a primary horseshoe vortex upon separation and its interaction with the resulting shock structure as it stretches around the obstacle. This study continues from that in Estruch-Samper et al (2010), where semi-empirical correlations of the average heat transfer in the 'hot spot' region were derived based on common nondimensional terms (Mach, Reynolds and Stanton numbers).…”
Section: 2dmentioning
confidence: 88%
“…1). These interactions are strongly three-dimensional and present similar features to more commonly investigated interactions such as those induced by blunt fins (Jones 1964;Neumann and Hayes 1981), cylindrical obstacles in hypersonic flow (Hung and Patel 1984;Nestler 1985;Tang and Yu 1992;Avallone et al 2015) and other specific protuberances (Neumann and Freeman 2012;Kumar andReddy 2013, 2014), which generally involve the formation of a primary horseshoe vortex upon separation and its interaction with the resulting shock structure as it stretches around the obstacle. This study continues from that in Estruch-Samper et al (2010), where semi-empirical correlations of the average heat transfer in the 'hot spot' region were derived based on common nondimensional terms (Mach, Reynolds and Stanton numbers).…”
Section: 2dmentioning
confidence: 88%
“…The total uncertainty in the parameter F is given by the square root of the sum of squares of each oF¡ (4) For directly measured quantities, such as heat transfer rate, q, the total uncertainty is obtained by the accumulation of its sensitivity to parameters like: (a) error in determination of the temperature co-efficient of resistance of the platinum thin-film gauge, ares. (b) error in measurement of gauge backing matedal properties, (c) error in measurement of initial voltage set for each gauge, (d) error in output of the data acquisition system, and (e) error in amplification factor used in the measurement system.…”
Section: Uncertainty Analysismentioning
confidence: 99%
“…Aerodynamic heating has not been fully characterized for all flow regimes in open literature. Considerable amount of research has been carried out for protuberances which are much larger (about one order or so) compared with the ¿locah but not so much is available on interference heating caused by smaller protrusions with size similar to the oncoming boundary layer thickness [4].…”
Section: Introductionmentioning
confidence: 99%
“…As part of a larger effort within the shuttle RTF, Everhart et al 2,3 and Wood et al 4 investigated the supersonic/hypersonic cavity flow experimentally and numerically. Especially, they examined the conventionally classified cavity geometry, 5,6,7 where the cavity under the supersonic/hypersonic mainstream is distinguished by using the cavity fundamental parameter: the ratio of length (L) to depth (H). The case of 1≤L/H≤11 is defined as the open cavity, while L/H≥15 is as the closed cavity.…”
Section: Introductionmentioning
confidence: 99%