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Diffusion of liquid hydrogen in time-dependent MHD mixed convective flow
- Source :
- Journal of Thermal Analysis and Calorimetry. 141:1197-1205
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- An innovative study on liquid hydrogen diffusion in time-dependent mixed convection flow is carried out in the presence of magnetic field effects. In fact, this is the first approach to analyze such flow problems, and also this is the first research paper to study the non-uniform heat sink/source and nonlinear chemical reaction in the presence of liquid hydrogen diffusion. Initially, the governing equations are reduced to dimensionless form by using non-similar transformations and are linearized by applying quasilinearization technique. Then, the finite difference approximation is utilized to discretize the resulting equations. The mixed convection is analyzed along with exponentially stretching surface through various graphs on profiles as well as gradients. The results display that the non-uniform heat source parameter increases the fluid velocity as well as temperature, and the magnetic parameter reduces the friction at the wall. Specifically, the skin friction coefficient decreases about 40% in the presence of magnetic field. The mass transfer rate increases for high-order chemical reaction and for destructive chemical reaction rate. The mass transfer rate is found to be high for the diffusion of liquid nitrogen than that for the diffusion of liquid hydrogen. In fact, the mass transfer rate increases about 22% for the diffusion of liquid nitrogen. This study can assist the design engineers who are working in pertain to the diffusion of liquid gases in mixed convection regimes. Also, the obtained data in the present study can be more useful for future investigations about time-dependent mixed convection nanofluid flow problems.
- Subjects :
- Materials science
Liquid gas
02 engineering and technology
Mechanics
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
010406 physical chemistry
0104 chemical sciences
Physics::Fluid Dynamics
Reaction rate
Nanofluid
Flow velocity
Combined forced and natural convection
Physical and Theoretical Chemistry
Diffusion (business)
Magnetohydrodynamics
0210 nano-technology
Liquid hydrogen
Subjects
Details
- ISSN :
- 15882926 and 13886150
- Volume :
- 141
- Database :
- OpenAIRE
- Journal :
- Journal of Thermal Analysis and Calorimetry
- Accession number :
- edsair.doi...........0945f1cbfb1aec0fcda880b24f65a55a
- Full Text :
- https://doi.org/10.1007/s10973-019-09101-y