PDE (6) Using the method of characteristics, solve the PDE диди Yör + au = 2...
MATH2018 Quiz The PDE ar2 can be solved using D'Alembert method. That is, it has a solution of the form u(x, t) = φ(x + ct) + ψ(x-ct). where c 6 Solve the PDE with the initial conditions u(x, 0) 6 sin (x), ut (x, 0) 3 er Enter the expression for u(x, t) in the box below using Maple syntax. Note: the expression should be in terms of x andt, but not c MATH2018 Quiz The PDE ar2 can...
Problem 1: [10 marks] Solve the PDE without using the method of characteristics!
a) Use the d'Alembert solution to solve au au - <r< ,t> 0, at2 48,2 ux,0) = cos 3x, u(,0) = 21 b) Consider the heat equation диди 0<x<1, t > 0, at ax? with boundary conditions uz (0,t) = 0, uz(1,t) = 0, > 0, and initial conditions u(x,0) = { 0, 2.0, 0<r < 0.5, 0.5 <<1. Use the method of separation of variables to solve the equation.
solve the PDE +u= at2 on 3 € (0,L), t > 0, with boundary conditions au 2x2 u(0,t) = 0, u(L, t) = 0 au and initial condition u(x,0) = f(x), at (x,0) = g(x) following the steps below. (a) Separate the variables and write differential equations for the functions (x) and h(t); pick the separation constant so that we recover a problem already studied. (b) Find the eigenfunctions and eigenvalues. (c) Write the general solution for this problem. (d)...
Solve using the Laplace Transform the problem with border values au x2 au at2 para 0<x<1,7 > 0 sujeto a las condiciones u(0,t) = 0, u(,0) = 0, ди u(1,t) = 0 2 sin(72) + 4 sin(372) at lt=0
What type of PDE is this? Solve PDE using separation of variables (show all the work and logic) 05 x u(x,0) 4sin(37r), u,(x,0) 2sin(57) 0sx 1,t 2 0
(1 point) Solve the Dirichlet problem in the circle of radius 9 using polar coordinates: PDE V?u= Upr + Iur + 1 uge = 0 for 0 <r< 9. BC: u(9,0) = 2 sin(88) ur, 7) = (Write theta for)
2. Use the method of separation of variables to solve the boundary value problem ( au = karu 0<x<L t > 0 (0,t) = 0, > 0 (1.1) -0. > 0 (u(a,0) - (x) 0<x<L. Be sure to detail exactly how f(x) enters your solution E-
5. For the transport equation PDE Uz-ut + u = 0 IC u(z,0) cos z (a) What is the associated ODE after applying the method of characteristics? (b) Solve the associated ODE to find u(s,T) c)Find u(x, t) 5. For the transport equation PDE Uz-ut + u = 0 IC u(z,0) cos z (a) What is the associated ODE after applying the method of characteristics? (b) Solve the associated ODE to find u(s,T) c)Find u(x, t)
statisfied the PDE Suppose that λ-λ 1,22 are constants such that u(x, y)-F(x + λy) 24 u(x,y))-10 ya for any twice-differentiable function of one variable F(s) Suppose also that λ1 λ2 , enter the values of λ 1, λ2 in the boxes below. 6 2 Hence the soution will be of the form Solve the PDE with the initial conditions u (x, 0)-5 sin (a), lty (x,0)-0. Enter the expression for u(x, y) in the box below using Maple syntax...