*Calculator
*

The flow of compressible fluid over the system of bodies can be predicted
by the **Calculator**. The remote program
**PARAD-2.2** is applied in this case. Thus,
this task is solved by our server. For this purpose, fill in forms below
(data, your e-mail address and name) and submit. Then e-mail with form
will be received by the server, processed and sent with the results back
to your e-mail box. We need your e-mail address because these products
are e-mail based. If you have concerns about giving out your e-mail address,
please read our statement of integrity. The
Calculator will run JavaScripts. Be sure your browser supports this language,
otherwise install Netscape Navigator (recommended) or Internet Explorer.

**Data Form
Type of task:
**2-Dimensional plane

2-Dimensional axisymmetric

3-Dimensional

**Specific heatings ratio (Cp/Cv)**=

**Mach number** =

**Angle of attack (in degrees)**=

with respect to Ox axis (ignored in axisymmetric case)

**Reynolds number** based on the body size=

**Geometry option**: Polyline (broken line)
or Smoothed (B-spline)

Fill in coordinates in left columns
and leave spaces between data and comments. Format: [X] [Y] [comment].
The Ox axis indicates the downstream direction for zero angle of attack.
In axisymmetric case Ox - axis is the basic (Y=0) and 1/2 of geometry can
be assigned. The list containing at least 15-20 points is recommended for
smoothed geometry. If the geometry is very complex, or your browser can't
import list of points from other files, you may send the geometry file
separately by regular e-mail as a ZIP attachment. The file can be also
in DXF, DWG, 3DS and other CAD formats supported/converted by AutoDesk
products. The files in graphic formats GIF and JPEG are acceptable as well.
Anyway the size of files mailed separately MUST BE LIMITED by 40Kb. The
number of bodies and points describing the geometry is unlimited. Solid
body must be assigned as closed line, i.e. first and last point coincide.
Specify in comments first and last point of each body, the position of
gaps and perforation of shell if any. Any problem to define and input huge
list of coordinates? Leave it to us. Describe the geometry in words if
possible (ex.: "Three bodies: 1) Sphere, radius R=2, center located
at [7;0]; 2) Disk, radius R=1, center at [0;0], uniform porosity 15%; 3)
Cylinder diameter D=0.2 connecting sphere and disk")

**Geometry option**: Polyline (broken line)or
Smoothed (B-spline)

See instruction above (**Geometry of
Bodies**). Unlike finite bodies, the boundary can be unlimited. Use
very large (but finite!) coordinates in this case. You may assign several
boundaries and appropriate conditions (suction, injection, motion, etc.)
in this form. Just specify it in comments.

**The result must be sent in the following form**
(check the boxes):

One two-dimensional tran- or supersonic task = $150

One three-dimensional tran- or subsonic task = $590

One three-dimensional supersonic task = $300

Discount for serial computing and optimization = 15%

Pre-Pocessor PARAD-2.2 = $1.500

Post-Processor PARAD-2.2 = FREE

Full featured package PARAD-2.2 = $5.200

Form of payment: wire transfer.