Computation of fluid circulation in a cryogenic storage tank and heat transfer analysis during jet impingement

摘要: The study presents a systematic single and two-phase analysis of fluid flow heat transfer in liquid hydrogen storage vessel for both earth space applications.The considered cylindrical tank with elliptical top bottom. wall ismade aluminum multi-layered blanket cryogenic insulation (MLI) has been attached on the aluminum. is connected to cryocooler dissipate leak through into within tank. not modeled; only out system included. primary emphasis this research circulation different distribution scenario level gravity simulate all potential based applications. equations solved region included conservation mass, energy, momentum. For solid conduction equation was solved. steady-state velocity, temperature pressure distributions were calculated inlet positions, opening sizes, velocities values. above simulations carried constant flux cases. It observed from single-phase that good can be obtained when cold entering made radial direction placed close wall. For mass energy balance at evaporating interface taken account by incorporating change specific volume latent evaporation. A an angle axis or aligned bottom surface tank. The velocity vapor found higher compared region.The focus later part present investigation conjugate during confined jet impingement uniform discrete heating source. Equations governing momentum, region. In region, solid-fluid shows strong dependence several geometric, flow, parameters. sources Nusselt number increased Reynolds number. given rate, coefficient smaller slot width lower height.The average are greater thermal conductivity substrate.