Dimensionless Groups

This spreadsheet will calculate dimensionless groups that commonly appear in non-isothermal, reacting gas flows. Some properties depend on temperature, pressure, and composition, while others also depend on length and velocity scales characteristic of the system under study.

Temperature:

(Required)

Pressure:

(Required)

Length scale:

(Optional)

Velocity scale:

(Optional)

You can enter
a velocity, or
a flow rate
and diameter
or area, and
the velocity
will be
computed.

or

Flow Rate (STP):

and

Conduit/pipe
diameter:

or

Cross sectional
area for flow:

Currently, at least two species must be specified. If one species is present in excess, such as a bath gas or diluent, list it first.

Species Name

Moles or
Mole Fraction


	Temperature:	(Required)
	Pressure:	(Required)

	Length scale:	(Optional)

	Velocity scale:	(Optional) You can enter a velocity, or a flow rate and diameter or area, and the velocity will be computed.
or
	Flow Rate (STP):
	and
	Conduit/pipe diameter:
	or
	Cross sectional area for flow: