VMFL063

VMFL063
Separated Laminar Flow Over a Blunt Plate

Overview

Reference

J.C. Lane, R.I. Loehrke, “Leading Edge Separation from a Blunt Plate at Low Reynolds Number”, Transactions of ASME, Vol. 102, pp. 494-496, 1980

Solver Ansys Fluent, Ansys CFX

Physics/Models Laminar flow, high resolution numerical models

Input File

VMFL063_FLUENT.cas for Ansys Fluent

VMFL063_Serial.def for Ansys CFX

Project Files Link to Project Files Download Page

Test Case

The flow separation over a blunt leading edge in laminar flow is modeled. The flow separates and reattaches along the plate. The reattachment length predicted by the solvers is validated against experimental results. Due to symmetry, only half of the domain shown in Figure 153: Flow Domain is modeled. The Reynolds number based on plate thickness is 260.

Figure 153: Flow Domain

Material Properties	Geometry	Boundary Conditions
Density: 1 kg/m³ Viscosity: 1.7894 X 10^-5 kg/m-s	Thickness of the plate, 2t = 90 mm Length of the plate = 1500 mm	Velocity at inlet = 0.0517 m/s

Material Properties

Geometry

Boundary Conditions

Density: 1 kg/m³

Viscosity: 1.7894 X 10^-5 kg/m-s

Thickness of the plate, 2t = 90 mm

Length of the plate = 1500 mm

Velocity at inlet = 0.0517 m/s

Results Comparison for Ansys Fluent

Table 36: Comparison of Reattachment Length

	Target	Ansys Fluent	Ratio
Non-dimensionalized Reattachment length (L_R/2t)	4.0	4.16	1.04

Results Comparison for Ansys CFX

Table 37: Comparison of Reattachment Length

	Target	Ansys Fluent	Ratio
Non-dimensionalized Reattachment length (L_R/2t)	4.0	4.05	1.01