Heat and mass transfer on a rough surface with gas blowing at the wall

Puzach, V. G.

doi:10.1016/0017-9310(92)90262-q

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…Now using the relation for V s = 0, given by (4.105) Kays and Crawford (1993) show that both the friction coefficient and the Stanton number predicted by (4.221) and (4.223) agree weIl with the experimental results for a large range of Band B t . Recent studies of Faraco- Medeiros and Silva-Freire (1992) and Puzach (1992) address the effect of the pressure gradient and the surface roughness.…”

Section: (B) Turbulent Boundary Layersmentioning

confidence: 99%

Solid—Fluid Systems with Simple, Continuous Interface

Kaviany

2001

Mechanical Engineering Series

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When the ass um pt ion of local thermal equilibrium between the solid and the fluid is not valid, Le., when the main heat transfer is between the two adjacent phases, the two-medium treatment of the heat transfer is needed. In this chapter interfacial geometries that are simple and continuous (as compared to discrete, which is discussed in Chapter 5), such as planar and curved surfaces, are considered. M. Kaviany, Principles of Convective Heat Transfer

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Section: (B) Turbulent Boundary Layersmentioning

confidence: 99%

Solid—Fluid Systems with Simple, Continuous Interface

Kaviany

2001

Mechanical Engineering Series

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“…For Re > Recr, the flow is established in a pseudoturbulent manner, and a turbulent diffusivity operates instead of the molecular diffusivity. Determination of the value of the critical number Recr needs special experimental studies (Puzach, 1992).…”

Section: Dimensionless Numbers That Govern the Mass Transfermentioning

confidence: 99%

Heat and mass transfer along a wetted porous plate in an air stream

Belhamri

Fohr

1996

AIChE Journal

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“…Of late, the influence of surface roughness on mass transfer rates was analyzed by Dawson and Trass (1972) by considering a series of geometrically similar rough surfaces. As an initial approach, Sedahmed and Shemilt (1976) have analyzed the impacts of surface roughness on forced convection flow, while Puzach (1992) has studied the effects of blowing over rough surfaces. The study on surface roughness is then continued by Kandlikar et al (2003) and their analysis was mainly focused on fluid flow over small diameter tubes.…”

Section: Introductionmentioning

confidence: 99%

Impacts of surface roughness on mixed convection nanofluid flow with liquid hydrogen/nitrogen diffusion

Patil

Doddagoudar

Hiremath

2019

HFF

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Purpose The purpose of this paper is to present the surface roughness effects on mixed convection nanofluid flow with liquid hydrogen/liquid nitrogen diffusion. Design/methodology/approach The small parameter (α) is considered along with the frequency parameter n to study the surface roughness. The non-similar transformations are used to reduce the dimensional non-linear partial differential equations into dimensionless form, and then, the resulting equations are solved with the help of Newton’s Quasilinearization technique and the finite difference scheme. Findings The impacts of several dimensionless parameters such as Brownian diffusion parameter (Nb), thermophoresis parameter (Nt), small parameter (α), etc., are analyzed over various profiles as well as gradients. Also, the investigation is carried out for in presence and absence of nanoparticles. The influence of surface roughness is sinusoidal in nature and is more significant near the origin in case of skin-friction coefficient. The addition of nanoparticles enhances the skin-friction coefficient and reduces the Nusselt number, while its effects are not noticeable in case of mass transfer rates. The presence of suction/blowing, respectively, enhances/decreases the Sherwood number pertaining to the liquid hydrogen. Practical implications The results of the present analysis are expected to be useful for the design engineers of polymer industries in manufacturing good quality polymer sheets. Originality/value To the best of the author’s knowledge, no such investigation has been carried out in the literature.

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Heat and mass transfer on a rough surface with gas blowing at the wall

Cited by 6 publications

References 7 publications

Solid—Fluid Systems with Simple, Continuous Interface

Solid—Fluid Systems with Simple, Continuous Interface

Heat and mass transfer along a wetted porous plate in an air stream

Impacts of surface roughness on mixed convection nanofluid flow with liquid hydrogen/nitrogen diffusion

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