Chemical Reaction Effects on Wall Heat Flux in Liquid Rocket Thrust Chambers

2014 ◽  
Author(s):  
Barbara Betti ◽  
Daniele Bianchi ◽  
Francesco Nasuti ◽  
Emanuele Martelli
Keyword(s):  
Heat Flux ◽  
Chemical Reaction ◽  
Wall Heat Flux ◽  
Rocket Thrust ◽  
Liquid Rocket

Wall Heat Flux Mapping of Liquid Rocket Thrust Chamber with Dual Impinging GH2/GO2 Jets

2017 ◽  
Author(s):  
Vigneshwaran Sankar ◽  
Aravind A ◽  
Giridharan D ◽  
Pavithra Murugesh ◽  
VR Sanal Kumar
Keyword(s):  
Heat Flux ◽  
Wall Heat Flux ◽  
Thrust Chamber ◽  
Rocket Thrust ◽  
Liquid Rocket ◽  
Flux Mapping

Wall Heat Flux Evaluation in Regeneratively Cooled Rocket Thrust Chambers

2021 ◽  
Vol 35 (1) ◽  
pp. 127-141
Author(s):  
Nikolaos Perakis ◽  
Lukas Preis ◽  
Oskar J. Haidn
Keyword(s):  
Heat Flux ◽  
Wall Heat Flux ◽  
Rocket Thrust

Estimating the Wall Heat Flux of Unsteady Conjugated Forced Convection Between Two Corotating Disks Using an Inverse Solution Scheme

2008 ◽  
Vol 130 (12) ◽  
Author(s):  
David T. W. Lin ◽  
Hung Yi Li ◽  
Wei Mon Yan
Keyword(s):  
Heat Flux ◽  
Forced Convection ◽  
Boundary Surface ◽  
Temperature Sensors ◽  
Inverse Solution ◽  
Wall Heat Flux ◽  
Unknown Boundary ◽  
Measured Temperature ◽  
Solution Scheme ◽  
Good Agreement

An inverse solution scheme based on the conjugate gradient method with the minimization of the object function is presented for estimating the unknown wall heat flux of conjugated forced convection flows between two corotating disks from temperature measurements acquired within the flow field. The validity of the proposed approach is demonstrated via the estimation of three time- and space-dependent heat flux profiles. A good agreement is observed between the estimated results and the exact solution in every case. In general, the accuracy of the estimated results is found to improve as the temperature sensors are moved closer to the unknown boundary surface and the error in the measured temperature data is reduced.

Application of generalized Fourier heat conduction law on MHD viscoinelastic fluid flow over stretching surface

2019 ◽  
Vol 30 (6) ◽  
pp. 3481-3496 ◽  
Author(s):  
Arif Hussain ◽  
Muhammad Yousaf Malik ◽  
Mair Khan ◽  
Taimoor Salahuddin
Keyword(s):  
Heat Flux ◽  
Fluid Flow ◽  
Friction Factor ◽  
Numerical Technique ◽  
Wall Heat Flux ◽  
Constitutive Law ◽  
Wall Friction ◽  
Theoretical Physics ◽  
Stretching Surface ◽  
Content Type

Purpose The purpose of current flow configuration is to spotlights the thermophysical aspects of magnetohydrodynamics (MHD) viscoinelastic fluid flow over a stretching surface. Design/methodology/approach The fluid momentum problem is mathematically formulated by using the Prandtl–Eyring constitutive law. Also, the non-Fourier heat flux model is considered to disclose the heat transfer characteristics. The governing problem contains the nonlinear partial differential equations with appropriate boundary conditions. To facilitate the computation process, the governing problem is transmuted into dimensionless form via appropriate group of scaling transforms. The numerical technique shooting method is used to solve dimensionless boundary value problem. Findings The expressions for dimensionless velocity and temperature are found and investigated under different parametric conditions. The important features of fluid flow near the wall, i.e. wall friction factor and wall heat flux, are deliberated by altering the pertinent parameters. The impacts of governing parameters are highlighted in graphical as well as tabular manner against focused physical quantities (velocity, temperature, wall friction factor and wall heat flux). A comparison is presented to justify the computed results, it can be noticed that present results have quite resemblance with previous literature which led to confidence on the present computations. Originality/value The computed results are quite useful for researchers working in theoretical physics. Additionally, computed results are very useful in industry and daily-use processes.

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