Boltzmann transport equation & drift-diffusion equation ~ Please help me

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SUMMARY

The discussion focuses on deriving the energy conservation equation for mass-conserving particles from the Boltzmann transport equation and subsequently deriving the drift-diffusion equation for charge flow under local thermodynamic equilibrium conditions. The derivation of the energy conservation equation involves using the momentum equation to eliminate the mechanical energy component, leading to a formulation for thermal energy conservation. The drift-diffusion equation can be derived using vector calculus identities, emphasizing the simplicity of the derivation process.

PREREQUISITES
  • Understanding of the Boltzmann transport equation
  • Familiarity with energy conservation principles in physics
  • Knowledge of vector calculus identities
  • Concept of local thermodynamic equilibrium
NEXT STEPS
  • Study the derivation of the Boltzmann transport equation in detail
  • Explore energy conservation equations in fluid dynamics
  • Learn about vector calculus identities relevant to physics
  • Research applications of the drift-diffusion equation in semiconductor physics
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Physicists, engineers, and researchers involved in transport phenomena, particularly those focusing on energy conservation and charge flow in materials.

minywall1
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Boltzmann transport equation & drift-diffusion equation ~ Plz help me!

1.
From the Boltzmann transport equation,
derive the energy conservation equation for mass conserving particles.
Use the momentum equation to subtract the mechanical energy component,
and then derive the equation for thermal energy conservation.


2.
Assuming the local thermodynamic equilibrium (i.e. df/dx = dfo/dx)
derive the drift-diffusion equation for charge flow.
 
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Derivation is really easy, you only need some vector calculus identities. However, the full thing is
here.
 

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