Convective nanofluid flow over a vertical cone with a rough surface

P. M. Patil, Shivanandappa H. Doddagoudar, P. S. Hiremath

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


In recent literature, the analysis of a combined convective flow over a cone has received a lot of attention. To explore the convection effects of flow over a cone in greater detail, in this investigation, we have considered a cone with a rough surface, which is entirely a new flow problem. Recent studies have shown the influence of roughness on fluid flow over several geometries, but flow over a rough conical surface has not been studied so far. In addition, we have analyzed the effects of nanoparticles, magnetohydrodynamic (MHD), and suction/blowing, which could have significant impacts on characteristics of fluid flow over the cone with a rough surface. Initially, the governing equations, which are partial differential equations with a high degree of nonlinearity, are nondimensionalized through Mangler's transformations. Later, linear equations are obtained via the method of quasilinearization, which is then solved numerically through finite difference approximations. The roughness of the cone's surface has notable effects on fluid flow, that too away from the origin. In fact, the roughness increases the friction at the cone's surface. Furthermore, the magnetic field applied at the wall increases the surface friction. Thus, the combination of roughness and MHD helps delay the boundary layer separation. On the other hand, the suction reduces the temperature of the fluid and increases the energy transport strength, while the thermophoresis parameter exhibits the contrary nature. Therefore, the combined consideration of these two could enhance energy transport strength in several industrial applications.

Original languageEnglish
Pages (from-to)3126-3141
Number of pages16
JournalHeat Transfer
Issue number4
Publication statusPublished - Jun 2022
Externally publishedYes


  • magnetohydrodynamic flow
  • mixed convection
  • nanofluid
  • quasilinearization
  • surface roughness
  • vertical cone

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Condensed Matter Physics


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