hypersonic flow sentence in Hindi
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- Finally, the increased temperature of hypersonic flows mean that real gas effects become important.
- Hypersonic flows, however, require other similarity parameters.
- Many of his theories are in a 1959 book, " Hypersonic Flow Theory " ( Academic Press ).
- Many of his developments appeared in his book Hypersonic Flow Theory, co-written with Ronald Probstein and first published in 1959.
- Aerodynamicists disagree over the precise definition of hypersonic flow; a rough definition considers flows with Mach numbers above 5 to be hypersonic.
- Hayes followed his work on supersonics with impressive studies of hypersonic flow, said to begin at five times the speed of sound.
- The resultant high temperature hypersonic flow can be used to simulate atmospheric re-entry of spacecraft or hypersonic craft, again with limited testing times.
- As they lack mechanical compressors, scramjets require the high kinetic energy of a hypersonic flow to compress the incoming air to operational conditions.
- Additionally, rarefied hypersonic flows ( usually defined as those with a Knudsen number above 0.1 ) do not follow the Navier Stokes equations.
- This fact is used extensively in rocketry where hypersonic flows are required and where propellant mixtures are deliberately chosen to further increase the sonic speed.
- One must keep in mind, however, that the value of the Fanning friction factor can be difficult to determine for supersonic and especially hypersonic flow velocities.
- Together with Wallace D . Hayes he wrote a book in 1959 on Hypersonic Flow Theory which remains the principal source of basic information on the subject.
- Further research into developing the technique will enable quantitative visualization of fluid flows, in various applications including cryogenic flows, supersonic and hypersonic flows, biomedical device flow visualization etc.
- He followed his work in supersonic flow with groundbreaking studies in the late 1940s and early 1950s in hypersonic flow, which is considered to begin at about five times the speed of sound, or Mach 5.
- Hypersonic flows are typically categorized by their total energy, expressed as total enthalpy ( MJ / kg ), total pressure ( kPa-MPa ), stagnation pressure ( kPa-MPa ), stagnation temperature ( K ), or flow velocity ( km / s ).
- A "'hypersonic wind tunnel "'is designed to generate a hypersonic flow field in the working section, thus simulating the typical flow features of this flow regime-including compression shocks and pronounced boundary layer effects, entropy layer and viscous interaction zones and most importantly high total temperatures of the flow.
- The similitude principle was developed by Wallace D . Hayes, a pioneer in hypersonic flow, which is considered to begin at about five times the speed of sound, or Mach 5, and is described in his classic book Hypersonic Flow Theory co-written with Ronald Probstein and first published in 1959.
- The similitude principle was developed by Wallace D . Hayes, a pioneer in hypersonic flow, which is considered to begin at about five times the speed of sound, or Mach 5, and is described in his classic book Hypersonic Flow Theory co-written with Ronald Probstein and first published in 1959.
- In 1987 he was inducted into the National Academy of Engineering, for pioneering contributions to supersonic aircraft aerodynamics and to fundamental understanding of the physical gas dynamics of hypersonic flow . His important textbook from the first part of his career is, " Introduction to Physical Gas Dynamics " ( 1ed ed 1965, 2nd ed 1975 ).
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