The fundamental spherically symmetric fluid model

TL;DR

This paper introduces a comprehensive spherically symmetric fluid model that incorporates various physical effects like anisotropy, heat flow, viscosity, electric fields, and null fluids, unifying multiple phenomena into a single framework.

Contribution

It presents a novel effective anisotropic fluid model capable of integrating multiple physical effects within a spherically symmetric setting.

Findings

The model can incorporate pressure anisotropy and heat flow.

It unifies effects like viscosity and electric fields into a single framework.

The approach enhances understanding of complex fluid behaviors in spherical symmetry.

Abstract

It is shown that an effective anisotropic spherically symmetric fluid model with heat flow can absorb the addition to a perfect fluid of pressure anisotropy, heat flow, bulk and shear viscosity, electric field and null fluid.