Alfvén wave-turbulence-based solar wind models incorporating effects of field line shape. Radial profiles are shown for a) the solar wind speed v, and b) the electron and proton temperatures T_e and T_p. The curved (straight) case in which the field line shape is considered (neglected) is given by the solid (dashed) lines. In a), the asterisks indicate the sonic point where v equals the effective sonic speed c_S defined by Eq. (6), while the vertical bars represent wind speeds measured by tracking small density inhomogeneities (blobs) in SOHO/LASCO images as given by Wang et al. (2000). The triangles in b) give the hydrogen kinetic temperatures derived from H I Lyα measurements with SOHO/UVCS for a typical solar minimum streamer (Strachan et al. 2002).