Table A.1: List of symbols.
$\Delta {v}$ relative velocity

$\Sigma$ surface density

$\Omega$ angular (Keplerian) rotation frequency

A geometrical cross-section (1 particle)

C collision rate

E collision energy

$E_{\rm restr}/E_{\rm max-c}/E_{\rm frag}$ energy limits for particle restructuring/ maximum-compression/ fragmentation

$H_{\rm g}/h$ gas/particle scale height

K collision kernel

N number of monomers (Sect. 2); number of particles (Sect. 3)

$N_{\rm c}$ number of contacts

$N_{\rm s}$ number of distinct particles (number of species)

R heliocentric radius

Re Reynolds number

T temperature

$V/{\cal V}$ particle/simulated volume

$\alpha _{\rm T}$ turbulent viscosity parameter

$\xi$ critical displacement

$\gamma$ specific surface energy

$\delta$ area-mass exponent ( $A\sim m^\delta$ ) in fractal regime

$\kappa$ number of coagulations

$\mu$ reduced mass

$\nu_{\rm m}/\nu_{\rm T}$ molecular/turbulent viscosity

$\psi$ enlargement parameter

$\rho_{\rm d}/\rho_{\rm g}/\rho_{\rm s}$ dust/gas/specific density

$\sigma$ collision cross-section

$\tau_{\rm f}$ friction time

$\tau_{\rm rain}$ friction time at which particles are removed from simulation due to rain-out

a/a₀ radius (size)/monomer size

$c_{\rm g}$ thermal sound speed

g_i number population of species i.

$k_{\rm B}$ Boltzmann constant

$\ell$ eddy length scale

m mass

f particle distribution function (number density spectrum)

r random deviate

t time

$t_{\rm s}/t_0$ turn-over timescale of smallest/largest eddy

v velocity

${v_{\rm s}}/{v_0}$ velocity smallest/largest eddies

**Table A.1:** List of symbols.
$\Delta {v}$	relative velocity
$\Sigma$	surface density
$\Omega$	angular (Keplerian) rotation frequency
A	geometrical cross-section (1 particle)
C	collision rate
E	collision energy
$E_{\rm restr}/E_{\rm max-c}/E_{\rm frag}$	energy limits for particle restructuring/ maximum-compression/ fragmentation
$H_{\rm g}/h$	gas/particle scale height
K	collision kernel
N	number of monomers (Sect. 2); number of particles (Sect. 3)
$N_{\rm c}$	number of contacts
$N_{\rm s}$	number of distinct particles (number of species)
R	heliocentric radius
Re	Reynolds number
T	temperature
$V/{\cal V}$	particle/simulated volume
$\alpha _{\rm T}$	turbulent viscosity parameter
$\xi$	critical displacement
$\gamma$	specific surface energy
$\delta$	area-mass exponent ( $A\sim m^\delta$ ) in fractal regime
$\kappa$	number of coagulations
$\mu$	reduced mass
$\nu_{\rm m}/\nu_{\rm T}$	molecular/turbulent viscosity
$\psi$	enlargement parameter
$\rho_{\rm d}/\rho_{\rm g}/\rho_{\rm s}$	dust/gas/specific density
$\sigma$	collision cross-section
$\tau_{\rm f}$	friction time
$\tau_{\rm rain}$	friction time at which particles are removed from simulation due to rain-out
a/a₀	radius (size)/monomer size
$c_{\rm g}$	thermal sound speed
g_i	number population of species i.
$k_{\rm B}$	Boltzmann constant
$\ell$	eddy length scale
m	mass
f	particle distribution function (number density spectrum)
r	random deviate
t	time
$t_{\rm s}/t_0$	turn-over timescale of smallest/largest eddy
v	velocity
${v_{\rm s}}/{v_0}$	velocity smallest/largest eddies

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