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Seminario "Comparing Models for Compressible Convection", Jezabel Curbelo, UPC
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El próximo día 6 de octubre de 2023 a las 11:00 en el Salón de Grados B de la EII tendremos el seminario invitado "Comparing Models for Compressible Convection" impartido por la contratada Ramón y Cajal del Departamento de Matemática Aplicada de la Universidad Politécnica de Cataluña, Jezabel Curbelo. Nos presentará el trabajo "Comparing Models for Compressible Convection".
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Comparing Models for Compressible Convection
In numerical modeling of planetary and stellar convection, taking into account compressibility effects is crucial. However, using the exact equations may not be feasible due to the generation of fast acoustic waves, which distract from the slower convective motions caused by buoyancy. The Oberbeck-Boussinesq model simplifies the calculations by suppressing the acoustic waves, making it easier for numerical simulations, but it simplifies pressure effects to a secondary role. Intermediate models, such as the anelastic and anelastic liquid models, have also been proposed to balance simplicity and accuracy.
We investigated compressible convection under several different approximations for the thermodynamic state, as well as using the exact equations with different classes of equations of state (EoS). Our results are mostly discussed in the framework of mantle convection but the EoS is flexible enough to be applied to other cases.
In numerical modeling of planetary and stellar convection, taking into account compressibility effects is crucial. However, using the exact equations may not be feasible due to the generation of fast acoustic waves, which distract from the slower convective motions caused by buoyancy. The Oberbeck-Boussinesq model simplifies the calculations by suppressing the acoustic waves, making it easier for numerical simulations, but it simplifies pressure effects to a secondary role. Intermediate models, such as the anelastic and anelastic liquid models, have also been proposed to balance simplicity and accuracy.
We investigated compressible convection under several different approximations for the thermodynamic state, as well as using the exact equations with different classes of equations of state (EoS). Our results are mostly discussed in the framework of mantle convection but the EoS is flexible enough to be applied to other cases.
Fecha publicación: 2023-09-28
El próximo día 6 de octubre de 2023 a las 11:00 en el Salón de Grados B de la EII tendremos el seminario invitado "Comparing Models for Compressible Convection" impartido por la contratada Ramón y Cajal del Departamento de Matemática Aplicada de la Universidad Politécnica de Cataluña, Jezabel Curbelo. Nos presentará el trabajo "Comparing Models for Compressible Convection".
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Comparing Models for Compressible Convection
In numerical modeling of planetary and stellar convection, taking into account compressibility effects is crucial. However, using the exact equations may not be feasible due to the generation of fast acoustic waves, which distract from the slower convective motions caused by buoyancy. The Oberbeck-Boussinesq model simplifies the calculations by suppressing the acoustic waves, making it easier for numerical simulations, but it simplifies pressure effects to a secondary role. Intermediate models, such as the anelastic and anelastic liquid models, have also been proposed to balance simplicity and accuracy.
We investigated compressible convection under several different approximations for the thermodynamic state, as well as using the exact equations with different classes of equations of state (EoS). Our results are mostly discussed in the framework of mantle convection but the EoS is flexible enough to be applied to other cases.
In numerical modeling of planetary and stellar convection, taking into account compressibility effects is crucial. However, using the exact equations may not be feasible due to the generation of fast acoustic waves, which distract from the slower convective motions caused by buoyancy. The Oberbeck-Boussinesq model simplifies the calculations by suppressing the acoustic waves, making it easier for numerical simulations, but it simplifies pressure effects to a secondary role. Intermediate models, such as the anelastic and anelastic liquid models, have also been proposed to balance simplicity and accuracy.
We investigated compressible convection under several different approximations for the thermodynamic state, as well as using the exact equations with different classes of equations of state (EoS). Our results are mostly discussed in the framework of mantle convection but the EoS is flexible enough to be applied to other cases.
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