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Which of the following parameter is a measure of the relative importance of natural convection in relation to forced convection?
All empirical parameters have their usual meaning.
All empirical parameters have their usual meaning.
- a)Re
- b)Gr
- c)Gr/Re2
- d)Nu/Re2
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Which of the following parameter is a measure of the relative importan...
If (Gr/Re2) << 1, flow is primarily by forced convection
If (Gr/Re2) >> 1, flow is dominant by natural convection
If (Gr/Re2) ≌ 1, natural and forced convection are of same magnitude.
If (Gr/Re2) >> 1, flow is dominant by natural convection
If (Gr/Re2) ≌ 1, natural and forced convection are of same magnitude.
Most Upvoted Answer
Which of the following parameter is a measure of the relative importan...
Explanation:
Gr/Re2
The parameter Gr/Re2 is a measure of the relative importance of natural convection in relation to forced convection.
Gr
The Grashof number (Gr) is a dimensionless number in fluid dynamics that is used to determine the relative strength of buoyancy and viscous forces in a fluid flow. It is defined as the ratio of buoyancy forces to viscous forces within a fluid.
Re
The Reynolds number (Re) is a dimensionless number that describes the flow of a fluid. It is the ratio of inertial forces to viscous forces within the fluid.
Interpretation
When the Gr/Re2 parameter is high, natural convection is more dominant compared to forced convection. Conversely, when this parameter is low, forced convection is more significant.
Conclusion
Therefore, by calculating the Gr/Re2 parameter, one can determine the relative importance of natural convection in relation to forced convection in a given fluid flow situation.
Gr/Re2
The parameter Gr/Re2 is a measure of the relative importance of natural convection in relation to forced convection.
Gr
The Grashof number (Gr) is a dimensionless number in fluid dynamics that is used to determine the relative strength of buoyancy and viscous forces in a fluid flow. It is defined as the ratio of buoyancy forces to viscous forces within a fluid.
Re
The Reynolds number (Re) is a dimensionless number that describes the flow of a fluid. It is the ratio of inertial forces to viscous forces within the fluid.
Interpretation
When the Gr/Re2 parameter is high, natural convection is more dominant compared to forced convection. Conversely, when this parameter is low, forced convection is more significant.
Conclusion
Therefore, by calculating the Gr/Re2 parameter, one can determine the relative importance of natural convection in relation to forced convection in a given fluid flow situation.
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Which of the following parameter is a measure of the relative importance of natural convection in relation to forced convection?All empirical parameters have their usual meaning.a)Reb)Grc)Gr/Re2d)Nu/Re2Correct answer is option 'C'. Can you explain this answer?
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