ChE211 COMPUTATIONAL TECHNIQUES

Lectures: 4 Periods/Week Sessional Marks: 30
University Exam: 3 Hours University Examination Marks: 70


UNIT-I
Partial Differential Equations: Introduction, Formation of partial differential equations. Solutions of partial differential equations, Equations solvable by direct integration, Linear equations of the first order, Non-linear equations of the first order. Charpits method, Homogeneous linear equations with constant coefficients, Rules for finding the complementary function, Rules for finding the particular integral, Non-homogeneous linear equations.

UNIT-II
Applications of partial differential equations: Introduction, Variable separable method, One dimensional wave equation, One dimensional heat equation-steady and unsteady states, Two dimensional heat flow-steady state heat flow- Laplace's equation in Cartesian coordinates.

UNIT-III
Numerical Methods: Solution of Algebraic and Transcendental equations: Introduction, Newton- Raphson method, Solution of simultaneous linear equations: Gauss Siedal Iteration method.

Finite Differences & Interpolation: Introduction, Finite difference operators, Symbolic relations, Differences of a polynomial, Factorial notation, Newton's forward and backward difference interpolation formula, Interpolation with unequal intervals - Lagrange's interpolation.
Numerical Integration: Trapezoidal rule, Simpson's one-third rule.

UNIT-IV
Difference Equations: Introduction, Formation, Linear difference equations - Rules for finding the complementary function, rules for finding theparticular integral.
Numerical solution of ordinary and partial differential equations: Euler's method, Picards method, Runge-Kutta method of fourth order (for first order equations, simultaneous equations), Classification of partial differential equation of second order, Solutions of Laplace's and Poisson's equations by iteration method.


Text Books

  1. Higher Engineering Mathematics by B.S. Grewal, Khanna publishers, 39th edition.

Reference Books
  1. Introductory Methods of Numerical Analysis, S. S. Sastry, PHI Pvt. Ltd.,
  2. Numerical Analysis, James. B. B. Scarborough, Oxford & IBH.
  3. Partial Differential Equations, Ian.N.Sneddon, McGraw-Hill.