Related InterviewSolutions

• In case of a two-dimensional element, which of these will serve as the face area?(a) Distance of the connecting line(b) Area of the element(c) Unit area(d) Volume of the elementI have been asked this question in an interview.I would like to ask this question from Types of FVM Elements topic in section Finite Volume Methods of Computational Fluid Dynamics
• In a one-dimensional flow, the volume integral becomes __________(a) a line integral(b) an area integral(c) a surface integral(d) a surface integral and the Gauss divergence theoremI had been asked this question in examination.I'm obligated to ask this question of Finite Volume Method in division Finite Volume Methods of Computational Fluid Dynamics
• For three-dimensional flows, what is the approximation of the volume integral using the midpoint rule?(a) Product of the integrand at the face centre and the volume of the control volume(b) Product of the integrand at the control volume centre and the volume of the control volume(c) Product of the integrand at the control volume centre and the surface area of the control volume(d) Product of the integrand at the face centre and the surface area of the control volumeI had been asked this question in an interview for internship.My question is from Finite Volume Method in division Finite Volume Methods of Computational Fluid Dynamics
• To find the value of a flow variable at a third point in between two points with known values, which of these methods can be used for the one-dimensional case?(a) Shape function(b) Interpolation(c) Taylor series(d) Fourier seriesThis question was addressed to me in a job interview.This is a very interesting question from The Geometry of FVM Elements in section Finite Volume Methods of Computational Fluid Dynamics
• What is the shape of a tetrahedral element’s face?(a) Cuboid(b) Cube(c) Triangle(d) QuadrilateralThis question was addressed to me in a job interview.I want to ask this question from Types of FVM Elements in portion Finite Volume Methods of Computational Fluid Dynamics
• Which of these formulae is used to calculate the centroid of a polyhedron?(a) \(\sum_{n=1}^{No. \, of \,pyramids}Centroid_n×Volume_n\)(b) \(\frac{\sum_{n=1}^{No.\,of \,pyramids}Centroid_n×Volume_n}{\sum_{n=1}^{No. \, of \,pyramids}Volume_n}\)(c) \(\frac{\sum_{n=1}^{No.\,of\, pyramids}Centroid_n×Volume_n}{Volume_n} \)(d) \(\frac{\sum_{n=1}^{No.\,of \,pyramids}Centroid_n×Volume_n}{Centroid_n} \)I had been asked this question during a job interview.My query is from Types of FVM Elements topic in portion Finite Volume Methods of Computational Fluid Dynamics
• When compared to the algorithm to calculate the gradient of a structured grid, the algorithm for unstructured grids ___________(a) need more computational cost(b) need less computational cost(c) is more accurate(d) is less accurateThis question was posed to me in exam.My doubt stems from FVM topic in portion Finite Volume Methods of Computational Fluid Dynamics
• Which of these formulae is correct to find the gradient of the element ‘k’?(a) ∇Φk = \(\frac{1}{V_k}(\Sigma_{n\leftarrow fk} \Phi_n\vec{S_n})\)(b) ∇Φk = \(\frac{1}{V_k}(-\Sigma_{n\leftarrow f}\Phi_n \vec{S_n})\)(c) ∇Φk = \(\frac{1}{V_k}(\Sigma_{n\leftarrow f}\Phi_n \vec{S_n})\)(d) ∇Φk = \(\frac{1}{V_k}(- \Sigma_{n\leftarrow fk} \Phi_n\vec{S_n})\)I got this question by my college professor while I was bunking the class.I'm obligated to ask this question of FVM topic in section Finite Volume Methods of Computational Fluid Dynamics
• Which of these is needed for a vertex-centred arrangement and not for cell-centred elements?(a) Pre-defined shape functions(b) Face-centroids(c) Edge-centroids(d) Cell-centroidsThe question was posed to me by my college director while I was bunking the class.Question is taken from Variable Arrangement in FVM in section Finite Volume Methods of Computational Fluid Dynamics
• Approximate the surface integral ∫Snfd\(\vec{S}\) using the midpoint rule.(a) fnSn(b) Sn (fne+fnw)(c) \(\frac{S_n}{2}\) (fne+fnw)(d) \(\frac{S_n}{2}\) fnI have been asked this question in examination.Query is from Finite Volume Method topic in portion Finite Volume Methods of Computational Fluid Dynamics