Grashof number


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Grashof number

[′gräs‚hȯf ‚nəm·bər]
(fluid mechanics)
A dimensionless number used in the study of free convection of a fluid caused by a hot body, equal to the product of the fluid's coefficient of thermal expansion, the temperature difference between the hot body and the fluid, the cube of a typical dimension of the body and the square of the fluid's density, divided by the square of the fluid's dynamic viscosity. Also known as free convection number.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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[Gr.sub.d]: Grashof number based on the width of the left side slot
Process of Air Ingress during a Depressurization Accident of GTHTR300
To evaluate the accuracy and convergence of MACB scheme with conventional methods, a couple of simulations were conducted at different Reynolds and Grashof Numbers. Also, conventional CB was tested and its results were reported here.
Towards Multidimensional Artificially Characteristic-Based Scheme for Incompressible Thermo-Fluid Problems
The influence of thermal Grashof number Gr and mass Grashof number Gm on velocity and microrotation is depicted from Figures 8-11.
MHD Flow of Micropolar Fluid over an Oscillating Vertical Plate Embedded in Porous Media with Constant Temperature and Concentration
Nomenclature a': Accelerating parameter a: Dimensionless accelerating parameter [a.sup.*]: Absorption coefficient [C.sub.p]: Specific heat at constant pressure [B.sub.0]: Transverse magnetic field strength Gr: Grashof number g: Acceleration due to gravity [kappa]: Thermal conductivity of the fluid k': Permeability parameter k: Dimensionless permeability parameter M: Magnetic field parameter Nu: Nusselt number Pr: Prandtl number [q.sub.r]: Radiative heat flux in the y direction R: Radiation parameter t':.
Transient Free Convective MHD Flow Past an Exponentially Accelerated Vertical Porous Plate with Variable Temperature through a Porous Medium
The fluid flow covers the whole domain but it is weak because of lower Grashof number (2*[10.sup.4]) and it is clear in magnitude of maximum stream function ([[PSI].sub.max]=+0.07109).
Heatline and entropy visualizations of combined natural and Marangoni convection in a square enclosure with bottom wall isoflux
Effects of the parameters namely Hartmann number M Grashof number Gr heat source parameter N and Prandtl number P have been observed on velocity and temperature distributions.
UNSTEADY MHD FLOW AND HEAT TRANSFER FOR NEWTONIAN FLUIDS OVER AN EXPONENTIALLY STRETCHING SHEET
Grashof number considers natural convection's impact inside the medium.
Modelling of thermal field of electromotor's collector in service
Figure 4(d) demonstrates the effect of thermal and concentration buoyancy forces, that is, Grashof number (Gr) and modified Grashof number (Gm) on the microrotation profiles.
Combined influence of hall current and Soret effect on chemically reacting magnetomicropolar fluid flow from radiative rotating vertical surface with variable suction in slip-flow regime
where [alpha] is the thermal conductivity, Gr and Le are the Grashof number and Lewis number, respectively.
Free convection nanofluid flow in the stagnation-point region of a three-dimensional body
In addition, the empirical correlations of the natural convection, radiation, and total heat loss Nusselt numbers versus the Grashof number, tilt angle, and ambient temperature were proposed.
Effects of absorber emissivity on thermal performance of a solar cavity receiver
At each value of the magnetic field, an increase in the Grashof number would directly increase the velocity via the increased Boussinesq source terms and hence also the magnitude of the slope of the velocity at the wall.
Computational dynamics of arterial blood flow in the presence of magnetic field and thermal radiation therapy

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