Sherwood Number The Sherwood number (Sh) is a dimensionless quantity used in heat transfer analysis to quantify the ratio of conductive heat transfer to for...
Sherwood Number
The Sherwood number (Sh) is a dimensionless quantity used in heat transfer analysis to quantify the ratio of conductive heat transfer to forced convection heat transfer. It is defined as:
where:
h_c is the thermal resistance due to conduction
h_f is the thermal resistance due to forced convection
The Sherwood number provides an indication of the relative importance of each heat transfer mechanism. A Sh value of 1 indicates that the heat transfer is predominantly due to conduction, while a Sh value of infinity indicates that the heat transfer is solely due to forced convection.
Examples:
A Sh value of 0.2 indicates that the heat transfer is 20% due to conduction and 80% due to forced convection.
A Sh value of 10 indicates that the heat transfer is 90% due to conduction and 10% due to forced convection.
A Sh value of infinity indicates that the heat transfer is solely due to forced convection