In a computational model of energy loss, if the energy flux increases, it typically means that there is more energy being transferred or lost per unit area over time. For the horse, this could imply an increase in energy expenditure or energy loss due to various factors such as increased heat loss, greater metabolic activity, or higher physical exertion.
If the energy flux increases, the energy loss of the horse would also likely increase. This is because a higher energy flux indicates that more energy is flowing out of the system (in this case, the horse), resulting in greater energy loss. Therefore, with increased energy flux, the overall energy loss of the horse would increase as well.