DOC: Documentation updates

src/TurbulenceModels/turbulenceModels/derivedFvPatchFields/wallFunctions/nutWallFunctions/nutUBlendedWallFunction/nutUBlendedWallFunctionFvPatchScalarField.H

@@ -33,14 +33,14 @@ Description
     log region contributions.
 
         \f[
-            uTau = (uTau_v^n + uTau_l^n)^(1/n)
+            u_\tau = (u_{\tau,v}^n + u_{\tau,l}^n)^{1/n}
         \f]
 
     where
     \vartable
-        uTau    | friction velocity
-        uTau_v  | friction velocity in the viscous region
-        uTau_l  | friction velocity in the log region
+        u_\tau     | friction velocity
+        u_{\tau,v} | friction velocity in the viscous region
+        u_{\tau,l} | friction velocity in the log region
     \endvartable
 
 

src/functionObjects/field/heatTransferCoeff/heatTransferCoeffModels/ReynoldsAnalogy/ReynoldsAnalogy.H

@@ -37,7 +37,7 @@ Description
     as:
 
     \f[
-        h = 0.5 \rho_\infty \C_{p,\infty} |U_{\infty}| C_f
+        h = 0.5 \rho_\infty C_{p,\infty} |U_{\infty}| C_f
     \f]
 
 Usage