Using the Thomas algorithm, if the i^th unknown is Φi=Pi Φi+1+Qi. what is the last unknown value ΦN equal to?(a) 0(b) PN(c) QN(d) 1I got this question during an interview.My doubt stems from Discretization Aspects in division Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics

Using the Thomas algorithm, if the i^th unknown is Φi=Pi Φi+1+Qi. wh

1.	Using the Thomas algorithm, if the i^th unknown is Φi=Pi Φi+1+Qi. what is the last unknown value ΦN equal to?(a) 0(b) PN(c) QN(d) 1I got this question during an interview.My doubt stems from Discretization Aspects in division Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
Answer» RIGHT option is (c) QN The BEST EXPLANATION: For the LAST EQUATION, bN=0. So, PN=0. ΦN=PNΦN+1+QN=QN.

Discussion

No Comment Found

Related InterviewSolutions

Which of these is related to convergence?(a) Stopping criteria(b) Peclet number(c) Lax Equivalence Theorem(d) Scarborough criteriaThis question was addressed to me in a job interview.I want to ask this question from Discretization Aspects topic in portion Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
Stability is defined _________(a) only for iterative solvers(b) only for direct solvers(c) for all numerical solvers(d) for all discretization processesThis question was posed to me in semester exam.My question is based upon Discretization Aspects topic in section Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
Which of these analyses needs a stretched grid?(a) Transient flow over a flat plate(b) Incompressible flow over a flat plate(c) Viscous flow over a flat plate(d) Subsonic flow over a flat plateThe question was asked in unit test.The doubt is from Discretization Aspects topic in division Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
The error due to the discretization of the partial differential equation is called as ______________(a) round-off error(b) discretization error(c) truncation error(d) iteration errorI have been asked this question in a job interview.This interesting question is from Discretization Aspects topic in chapter Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
Which of these schemes ensure conservativeness?(a) Central differencing(b) Upwind differencing(c) TVD scheme(d) Quadratic schemesThis question was posed to me in my homework.I want to ask this question from Discretization Aspects in chapter Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
What are zonal grids?(a) Grids generated for a particular zone of the domain of interest(b) Grids varying at different zones(c) Grids generated for a particular time in the flow(d) Grids varying with timeI had been asked this question by my school teacher while I was bunking the class.This key question is from Discretization Aspects in division Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
The difference between the exact analytical solution of a partial differential equation and its numerical solution is as ___________(a) round-off error(b) discretization error(c) iteration error(d) modelling errorThe question was asked in an international level competition.The doubt is from Discretization Aspects topic in portion Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
If the order of a discretized equation is ‘k’, what does it mean?(a) The last term of the equation is of (k+1)^th power(b) The last term of the equation is of k^th power(c) Truncation error is proportional to (k-1)^th power(d) Truncation error is proportional to k^th powerI have been asked this question in exam.Origin of the question is Discretization Aspects in chapter Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
The error occurring while approximating the physical problem is called as ____________(a) Modelling error(b) Physical error(c) Mathematical order(d) Iteration errorThis question was posed to me in final exam.Question is taken from Discretization Aspects in chapter Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics
In Von Neumann analysis, the solution is expanded using ____________(a) Laurent series(b) McLaurin series(c) Taylor series(d) Fourier seriesI had been asked this question in a national level competition.My doubt stems from Discretization Aspects topic in section Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment