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In the following two-dimensional momentum equation for natural convection over a surface immersed in a quiescent fluid at temperature T (g is the gravitational acceleration, β is the volumetric thermal expansion coefficient, v is the kinematic viscosity, u and v are the velocities in x and y directions, respectively, and T is the temperature)
,
 the term gbβ(T - T) represents
  • a)
    Ratio of inertial force to viscous force.
  • b)
    Ratio of buoyancy force to viscous force.
  • c)
    Viscous force per unit mass.
  • d)
    Buoyancy force per unit mass.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
In the following two-dimensional momentum equation for natural convect...
We know that 
Buoyancy force,

Hence, the correct option is (D). 
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In the following two-dimensional momentum equation for natural convection over a surface immersed in a quiescent fluid at temperature T∞ (g is the gravitational acceleration, β is the volumetric thermal expansion coefficient, v is the kinematic viscosity, u and v are the velocities in x and y directions, respectively, and T is the temperature),the term gbβ(T - T∞) representsa)Ratio of inertial force to viscous force.b)Ratio of buoyancy force to viscous force.c)Viscous force per unit mass.d)Buoyancy force per unit mass.Correct answer is option 'D'. Can you explain this answer?
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In the following two-dimensional momentum equation for natural convection over a surface immersed in a quiescent fluid at temperature T∞ (g is the gravitational acceleration, β is the volumetric thermal expansion coefficient, v is the kinematic viscosity, u and v are the velocities in x and y directions, respectively, and T is the temperature),the term gbβ(T - T∞) representsa)Ratio of inertial force to viscous force.b)Ratio of buoyancy force to viscous force.c)Viscous force per unit mass.d)Buoyancy force per unit mass.Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about In the following two-dimensional momentum equation for natural convection over a surface immersed in a quiescent fluid at temperature T∞ (g is the gravitational acceleration, β is the volumetric thermal expansion coefficient, v is the kinematic viscosity, u and v are the velocities in x and y directions, respectively, and T is the temperature),the term gbβ(T - T∞) representsa)Ratio of inertial force to viscous force.b)Ratio of buoyancy force to viscous force.c)Viscous force per unit mass.d)Buoyancy force per unit mass.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the following two-dimensional momentum equation for natural convection over a surface immersed in a quiescent fluid at temperature T∞ (g is the gravitational acceleration, β is the volumetric thermal expansion coefficient, v is the kinematic viscosity, u and v are the velocities in x and y directions, respectively, and T is the temperature),the term gbβ(T - T∞) representsa)Ratio of inertial force to viscous force.b)Ratio of buoyancy force to viscous force.c)Viscous force per unit mass.d)Buoyancy force per unit mass.Correct answer is option 'D'. Can you explain this answer?.
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