βw	Transient thermal property of work material (W1/2/(m2K))
ρw	Work material density (kg/mm3)
τ	Time constant of the thermocouple
ad	Dressing depth of cut (mm)
Agg	Dimensionless aggressiveness number
bs	Wheel thickness (mm)
bw	Work thickness (mm)
C	Integration constant
cw	Specific heat (J/kgK)
ds	Wheel diameter (mm)
k	Maximum temperature measured by the thermocouple expressed as a percentage of the step value
kw	Workpiece thermal conductivity (W/mK)
lc	Actual contact length (mm)
lg	Geometric contact length (mm)
qs	Speed ratio
qw	Heat density to the workpiece (W/mm2)
Qw’	Specific material removal rate (mm3/mm/s)
P	Power consumption during the grinding operation (kW)
Pe	Peclet number
Rw	Workpiece partition ratio
Tmax	Maximum grinding temperature (K)
Ud	Dressing overlap ratio (rev)
vfd	Dressing feed speed (mm/min)
vs	Wheel speed (m/s)
vw	Table feed speed (m/min)