Table of Contents

## What is orthogonal curvilinear coordinate?

When the system of curvilinear coordinates is such that the three co- ordinate surfaces are mutually perpendicular at each point, it is termed an. orthogonal curvilinear coordinate system. In this event the unit tangent. vectors to the coordinate curves are also mutually perpendicular at each.

## How do you define orthogonal coordinates?

In mathematics, orthogonal coordinates are defined as a set of d coordinates q = (q1, q2., qd) in which the coordinate hypersurfaces all meet at right angles (note: superscripts are indices, not exponents).

**What are curvilinear coordinates?**

In geometry, curvilinear coordinates are a coordinate system for Euclidean space in which the coordinate lines may be curved. These coordinates may be derived from a set of Cartesian coordinates by using a transformation that is locally invertible (a one-to-one map) at each point.

### How can you prove curvilinear coordinates are orthogonal?

If the coordinate surfaces intersect at right angles (i.e. the unit normals intersect at right angles), as in the example of spherical polars, the curvilinear coordinates are said to be orthogonal.

### Which of the following is an orthogonal coordinate system?

The most frequently used orthogonal coordinate systems are: on a plane — Cartesian coordinates; elliptic coordinates; parabolic coordinates; and polar coordinates; in space — cylinder coordinates; bicylindrical coordinates; bipolar coordinates; paraboloidal coordinates; and spherical coordinates.

**How many curvilinear coordinate systems are there?**

The two types of curvilinear coordinates which we will consider are cylindrical and spherical coordinates. Instead of referencing a point in terms of sides of a rectangular parallelepiped, as with Cartesian coordinates, we will think of the point as lying on a cylinder or sphere.

## Which of the following is an orthogonal system?

## What are non orthogonal coordinate systems?

A system of skew coordinates is a curvilinear coordinate system where the coordinate surfaces are not orthogonal, in contrast to orthogonal coordinates.

**Why work in general orthogonal curvilinear coordinates?**

Turns out we can – and this is the motivation for working in general orthogonal curvilinear coordinates. The difference between a general curvilinear system and the Cartesian one is that the axes orientation and scaling changes with the spatial position. But despite this, the axes always remain orthogonal.

### How do you find the orthogonal coordinate system of a curve?

We define a new orthogonal coordinate system that rotates with the curve tangent vector. Consider the position vector at some point in space. In the Cartesian coordinates, the position vector is given by r = xi+yj+zk r = x i + y j + z k. To be more general, we define the vector as r =x1i1+x2i2 +x3i3 r = x 1 i 1 + x 2 i 2 + x 3 i 3.

### What is the formula for orthogonal curvilinear?

Orthogonal Curvilinear C< where the quantities A; see that A; = (l/h;) af/a~ This is the general expl linear coordinate syster Several identities other differential opera

**What is a curvilinear coordinate?**

In the same space, the coordinate surface r = 1 in spherical coordinates is the surface of a unit sphere, which is curved. The formalism of curvilinear coordinates provides a unified and general description of the standard coordinate systems.